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Sodium hexachloroiridate(III)

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Sodium hexachloroiridate(III)
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.036.162 Edit this at Wikidata
EC Number
  • 239-795-6
PubChem CID
CompTox Dashboard (EPA)
InChI
  • InChI=1S/6ClH.Ir.3Na/h6*1H;;;;/q;;;;;;+3;3*+1/p-6Key: GSONQQIOULBMRS-UHFFFAOYSA-H
SMILES
  • ...Cl(Cl)(Cl)(Cl)(Cl)Cl
Properties
Chemical formula Cl6IrNa3
Molar mass 473.89 g·mol
Solubility in water 31.46 g/100 g (15°C)
Solubility insoluble in ethanol, very slightly soluble in acetone
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound

Sodium hexachloroiridate(III) is an inorganic compound with the chemical formula Na3IrCl6.

Preparation

Sodium hexachloroiridate(III) can be produced by the reduction of sodium hexachloroiridate(IV) with Fe, oxalate or hydrogen sulfide.

It can also be produced by heating iridium metal with NaCl and Cl2.

Reactions

Sodium hexachloroiridate(III) will get dehydrated at 110°C, and reversible decomposes at 550°C.

2 Na3IrCl6 ⇌ 2 Ir + 6 NaCl + 3 Cl2

In air, sodium hexachloroiridate(III) will be oxidized at 450°C.

2 Na3IrCl6 + 2 O2 → 2 IrO2 + 6 NaCl + 3 Cl2

It reacts with hydrochloric acid to form hydrogen hexachloroiridate(III).

It also reacts with ammonia water in sealed tube at 145°C to form Cl3.

References

  1. ^ Pannetier, G.; Macarovici, D.; Gaultier, M. (1972). "Les complexes halogenes d'iridium". Journal of Thermal Analysis (in French). 4 (2). Springer Science and Business Media LLC: 177–186. doi:10.1007/bf01911927. ISSN 0368-4466. S2CID 102384528.
  2. Fergusson, JE; Rankin, DA (1983). "The chloro and bromo complexes of iridium(III) and iridium(IV). I. Preparation". Australian Journal of Chemistry. 36 (5). CSIRO Publishing: 863. doi:10.1071/ch9830863. ISSN 0004-9425.
  3. ^ Housecroft, Catherine E. (2006-03-15), "Iridium: Inorganic & Coordination Chemistry", Encyclopedia of Inorganic Chemistry, Chichester, UK: John Wiley & Sons, Ltd, doi:10.1002/0470862106.ia101, ISBN 0470860782
  4. Venediktov, A. B.; Kultyshev, R. G. Polynuclear iridium(III) chlorides. Zhurnal Neorganicheskoi Khimii, 1989. 34 (4). 909-915. ISSN 0044-457X
Iridium compounds
Iridium(0)
Iridium(I)
Organoiridium(I)
Iridium(II)
Iridium(III)
Organoiridium(III)
Iridium(IV)
Iridium(V)
Iridium(VI)
Iridium(VII)
Iridium(VIII/IX)
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